Examine source code of Christmas Tree 2010

{
  "theme": {
    "images": {
      "theme_frame": "christmas_top2.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffcc99"
    }
  },
  "version": "2.0",
  "name": "Christmas Tree 2010",
  "manifest_version": 2,
  "description": "Christmas, holidays, lights, decorations.  Photograph by <a href=\"https://outgoing.prod.mozaws.net/v1/cb74f7db56771e9427b3f3d52c12c628fd4e55ef19c4d1b23018f432a501690a/http%3A//flickr.com/photos/mellow_stuff\" rel=\"nofollow\">http://flickr.com/photos/mellow_stuff</a>."
}